Willem van Gelder

AT AT&T: 1 patents #10,626 of 18,772Top 60%

📍 Lehighton, PA: #57 of 101 inventorsTop 60%

🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%

Overall (All Time): #4,036,040 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4454001	Interferometric method and apparatus for measuring etch rate and fabricating devices	Marek A. Sternheim	1984-06-12